Skip to content
    Combined Science GCSE

    pure water

    What pure water means in Combined Science GCSE, as defined for AQA.

    Definitions of pure water

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    Check what you remember

    Read the wording for your board, then hide it and explain pure water in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    Water that contains only H₂O molecules and nothing else, so it has a fixed boiling point of 100 °C at standard pressure and no dissolved ions.
    AQA · Potable water (study guide)
    Water that contains no dissolved substances at all.
    AQA · Potable water (study guide)

    Topics that use pure water

    Related terms

    Using pure water in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Combined Science questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Combined Science GCSE terms